Dynamic UE Capability Reporting for 5G Resource Scheduling
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Solution Overview
Problem
The 5G mobile communication system faces challenges in dynamically reporting user equipment capabilities across different frequency-domain and spatial domain positions, leading to suboptimal resource utilization due to varying performance requirements at different positions.
Innovation Solution
A method for user equipment to dynamically report capabilities associated with spatial and frequency-domain positions to the network device, allowing for flexible resource scheduling based on beam identifiers, carrier identifiers, transmission point identifiers, or quasi-co-location identifiers, enabling the network device to optimize resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If user equipment capability is reported statically without dynamic updates, then the reporting complexity is reduced, but the resource utilization deteriorates due to varying performance requirements at different frequency-domain and spatial domain positions
Solution Approach 1:
The patent implements dynamic capability reporting by enabling user equipment to update its capability information according to changes in frequency-domain position and spatial domain position. The network device triggers capability reporting when detecting position changes, transforming the static reporting mechanism into a dynamic one that adapts to varying operational conditions, thereby resolving the contradiction between reporting simplicity and resource utilization efficiency.
2Productivity
If user equipment reports capability for every frequency-domain position and spatial domain position, then the resource utilization is improved, but the signaling overhead increases
Solution Approach 1:
The patent applies local quality by enabling user equipment to report capability information specifically for the current active frequency-domain position and spatial domain position rather than all possible positions. The network device configures and triggers reporting only for relevant positions where the UE is currently operating, reducing unnecessary signaling while maintaining accurate capability information for resource scheduling.
3Measurement precision
If the network device performs frequent capability queries to ensure accurate resource scheduling, then the resource allocation accuracy is improved, but the system overhead increases
Solution Approach 1:
The patent implements a feedback mechanism where the network device monitors frequency-domain and spatial domain position changes and triggers capability reporting only when such changes occur. This event-driven feedback approach ensures the network device obtains up-to-date capability information for accurate resource allocation without performing unnecessary frequent queries, thereby balancing measurement precision with system overhead reduction.
Data Source
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AI summary
A method for reporting a user equipment capability is provided, which is performed by a user equipment. The method includes: determining whether a user equipment capability needs to be reported, where the user equipment capability is associated with a frequency-domain position and/or a spatial domain position; and reporting, in a case that it is determined that the user equipment capability needs to be reported, the user equipment capability to a network device. A corresponding method for resource scheduling performed by a network device, a corresponding user equipment and a corresponding network device are also provided.